I’m sorry to hear that Pandoc can’t handle really complicated tables. It’s beyond our small improvements (we did some work debugging the Textile to Markdown and Markdown to HTML converters) to take on a full rewrite for tables.

If you find a Pandoc that does work for tables, let me know and we’ll modify our engine.

Glad to hear tables work over there. You can’t convert larger documents and the Textile/Markdown conversion is very dodgy (which is why we fixed it and put it up here). I wouldn’t recommend using Markdown or Textile for tables though.

Could there please be an option to download the output as a file? I’m trying to link to an easy-to-use online pandoc converter and this one is better than the official markdown converter. All that would need to be done is add a download button and put the content in a text file that has the extension in the output. The pandoc would also need to generate a standalone file with -s.
With this option, could there please be an option to download html as either MathML, or with Mathjax?

Hi Brandon. Adding an API would be a burden we couldn’t take on right now but allowing file download might just work. Adding MathML or Mathjax is probably out of spec right now. If your in a position to make a donation, I’d be happy to add those for you.

I’ve thought seriously about making a really serious API version with limits and subscription and really large file sizes but I’m not sure it would fly with the free software crowd (most Pandoc users).

pandoc just requires –mathml or –mathjax as one of the arguments, so you don’t need to do anything else to add that as a feature. One should really be default when exporting HTML, otherwise $\frac{1}{2}$ will just look like that in the HTML. I think something similar to how Digital Ocean charges would work well with the Pandoc crowd, especially if there was a clear use case for an API. I am looking for something that will allow students to convert Markdown math files to HTML that is public facing.